🔍 Key Concepts

• Time-Speed-Distance formula: ( \text{Time} = \frac{\text{Distance}}{\text{Speed}} \) and converting knots to nautical miles per minute • How to use bearings from fixed navigation aids to define your position line on the chart • Plotting a course change and then advancing along that track until another aid bears a specific true bearing

💭 Think About

• After you turn to 118°T, what geometric condition is true on the chart when the buoy bears 180°T from your vessel? Think about where your track line must intersect a line of bearing from the buoy. • How can you find the along-track distance from your 1949 position to the point where your track line and the buoy’s 180°T line of bearing meet? • Once you know that distance, how long does it take to run it at 18 knots, and what clock time does that correspond to after 1949?

✅ Before You Answer

• Be sure you are using true bearings and that you draw the correct 180°T line of bearing from the buoy (from the buoy toward your vessel). • Confirm that your distance along the 118°T track is measured from the position at 1949, not from Little Gull Island itself. • Convert 18 knots to nautical miles per minute before computing elapsed time, then add that elapsed time to 1949 carefully.